Instantiating enemies and adding interaction

Next, we'll go back to PlayState and create instances of our enemies, and then make enemies disappear when they're clicked. Finally, we'll then add to our score every time the player clicks on an enemy.

Adding new imports

Before adding functionality, we'll need to import some more classes we'll be using in PlayState:

import flixel.plugin.MouseEventManager;
import flixel.FlxObject;
import flixel.util.FlxTimer;

Adding variables

Next, we'll add the new variables we'll need to track:

  private var numEnemies:Int = 20;
  private var score:Int = 0;
  private var enemyPointValue:Int = 155;
  private var enemies:Array<Enemy>;

These variables are pretty straightforward: numEnemies is the number of enemies we'll spawn in the game, score is the player's current score, and enemyPointValue is the number of points that will be added to your score each time an enemy is clicked. Finally, enemies is an array that will...